Characterization of Shock Wave Damages in Explosion Welded Mo/Cu Clads
The shock wave damage during explosive welding has not been reported in a flyer Mo plate of the Mo/Cu clads. However, it would be an inevitable problem in group VI elements. This study was aimed to characterize the shock wave damage in the Mo plate, that is less brittle than a W plate, of explosive...
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MDPI AG
2021-03-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/11/3/501 |
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| author | Pradeep Kumar Parchuri Shota Kotegawa Kazuhiro Ito Hajime Yamamoto Akihisa Mori Shigeru Tanaka Kazuyuki Hokamoto |
| author_facet | Pradeep Kumar Parchuri Shota Kotegawa Kazuhiro Ito Hajime Yamamoto Akihisa Mori Shigeru Tanaka Kazuyuki Hokamoto |
| author_sort | Pradeep Kumar Parchuri |
| collection | DOAJ |
| description | The shock wave damage during explosive welding has not been reported in a flyer Mo plate of the Mo/Cu clads. However, it would be an inevitable problem in group VI elements. This study was aimed to characterize the shock wave damage in the Mo plate, that is less brittle than a W plate, of explosive welded Mo/Cu clads. Cladding at low horizontal collision velocities leading to high collision angles was expected to enhance the shock wave damage, and the clads resulted in less elongation in bending tests. On the other hand, in the clads obtained at high horizontal collision velocities (HCVs) with low collision angles, their bending elongation increased significantly. The shock wave damage penetrated from the surface of a Mo plate to the Mo/Cu interface, and thus reducing thickness of a Mo plate of bending specimens increased bending plastic strain. The shock wave damage is associated with kinetic energy imparted to the flyer Mo plate, and thus loss of kinetic energy due to formation of an intermediate layer at the interface and reducing thickness of a flyer Mo plate would be very helpful for decrease of shock wave damage. |
| first_indexed | 2024-03-10T13:07:52Z |
| format | Article |
| id | doaj.art-895595b58c8a40e4b02ad1f922aa5ddd |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T13:07:52Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-895595b58c8a40e4b02ad1f922aa5ddd2023-11-21T10:57:53ZengMDPI AGMetals2075-47012021-03-0111350110.3390/met11030501Characterization of Shock Wave Damages in Explosion Welded Mo/Cu CladsPradeep Kumar Parchuri0Shota Kotegawa1Kazuhiro Ito2Hajime Yamamoto3Akihisa Mori4Shigeru Tanaka5Kazuyuki Hokamoto6Joining and Welding Research Institute, Osaka University, 11-1 Mihogaoka, Ibaraki, Osaka 567-0047, JapanJoining and Welding Research Institute, Osaka University, 11-1 Mihogaoka, Ibaraki, Osaka 567-0047, JapanJoining and Welding Research Institute, Osaka University, 11-1 Mihogaoka, Ibaraki, Osaka 567-0047, JapanJoining and Welding Research Institute, Osaka University, 11-1 Mihogaoka, Ibaraki, Osaka 567-0047, JapanDepartment of Mechanical Engineering, Sojo University, 4-22-1 Ikeda Nishi-ku, Kumamoto, Kumamoto 860-0082, JapanInstitute of Pulsed Power Science, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto, Kumamoto 860-8555, JapanInstitute of Pulsed Power Science, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto, Kumamoto 860-8555, JapanThe shock wave damage during explosive welding has not been reported in a flyer Mo plate of the Mo/Cu clads. However, it would be an inevitable problem in group VI elements. This study was aimed to characterize the shock wave damage in the Mo plate, that is less brittle than a W plate, of explosive welded Mo/Cu clads. Cladding at low horizontal collision velocities leading to high collision angles was expected to enhance the shock wave damage, and the clads resulted in less elongation in bending tests. On the other hand, in the clads obtained at high horizontal collision velocities (HCVs) with low collision angles, their bending elongation increased significantly. The shock wave damage penetrated from the surface of a Mo plate to the Mo/Cu interface, and thus reducing thickness of a Mo plate of bending specimens increased bending plastic strain. The shock wave damage is associated with kinetic energy imparted to the flyer Mo plate, and thus loss of kinetic energy due to formation of an intermediate layer at the interface and reducing thickness of a flyer Mo plate would be very helpful for decrease of shock wave damage.https://www.mdpi.com/2075-4701/11/3/501Mo/Cu cladsexplosive weldingshock wave damagemicro cracksbending elongationintermediate layer formation |
| spellingShingle | Pradeep Kumar Parchuri Shota Kotegawa Kazuhiro Ito Hajime Yamamoto Akihisa Mori Shigeru Tanaka Kazuyuki Hokamoto Characterization of Shock Wave Damages in Explosion Welded Mo/Cu Clads Metals Mo/Cu clads explosive welding shock wave damage micro cracks bending elongation intermediate layer formation |
| title | Characterization of Shock Wave Damages in Explosion Welded Mo/Cu Clads |
| title_full | Characterization of Shock Wave Damages in Explosion Welded Mo/Cu Clads |
| title_fullStr | Characterization of Shock Wave Damages in Explosion Welded Mo/Cu Clads |
| title_full_unstemmed | Characterization of Shock Wave Damages in Explosion Welded Mo/Cu Clads |
| title_short | Characterization of Shock Wave Damages in Explosion Welded Mo/Cu Clads |
| title_sort | characterization of shock wave damages in explosion welded mo cu clads |
| topic | Mo/Cu clads explosive welding shock wave damage micro cracks bending elongation intermediate layer formation |
| url | https://www.mdpi.com/2075-4701/11/3/501 |
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